import React from 'react'
import { NavLink,Routes,Route, Navigate } from 'react-router-dom'
import About from './pages/About'
import Home from './pages/Home'

export default function App() {
  function handleClass({isActive}){
    console.log('isActive',isActive);
    return isActive ? 'list-group-item song':'list-group-item'
  }

  return (
    <div>
     <div>
    <div className="row">
      <div className="col-xs-offset-2 col-xs-8">
        <div className="page-header"><h2>React Router Demo</h2></div>
      </div>
    </div>
    <div className="row">
      <div className="col-xs-2 col-xs-offset-2">
        <div className="list-group">
          <NavLink className={handleClass} to="/about">About</NavLink>
          <NavLink className={handleClass} to="/home">Home</NavLink>
        </div>
      </div>
      <div className="col-xs-6">
        <div className="panel">
          <div className="panel-body">

            <Routes>
              <Route path="/about" element={<About />}></Route>
              <Route path="/home" element={<Home />}></Route>
              {/* 重定向 */}
              <Route path="/" element={<Navigate to="/home" />}></Route>
            </Routes>

          </div>
        </div>
      </div>
    </div>
  </div>

    </div>
  )
}
